<template>
    <div id="subtmpl">
        <div class="inleft div" @click="substrict">-</div>
        <div class="incenter div" v-text="count"></div>
        <div class="inright div"  @click="add">+</div>
    </div>
</template>
<script>
    export default{
        data(){
            return {
                count:1 //代表购买商品的数量
            }
        },
        created(){

        },
        methods: {
            substrict(){
                if(this.count<=0){
                    return false;
                }else{
                    this.count--
                }
                this.sendmessage();
            },
            add(){
                this.count++
                this.sendmessage();
            },
            sendmessage(){

                this.$emit('dataobj',this.count);
//                console.log(this.count);

            }

        }
    }
</script>
<style scoped>
    #subtmpl .div{
        width: 40px;
        height: 25px;
        line-height: 25px;
        border: 1px solid #000;
        display: inline-block;
        text-align: center;
    }

</style>